Merge branch 'mw-gl-breakpoints-13' into 'master'

Replace breakpoints with GlBreakpointInstance in lib/utils/common_utils.js

See merge request gitlab-org/gitlab!22028

app/assets/javascripts/lib/utils/common_utils.js

@@ -2,12 +2,12 @@
  * @module common-utils
  */
 
+import { GlBreakpointInstance as breakpointInstance } from '@gitlab/ui/dist/utils';
 import $ from 'jquery';
 import axios from './axios_utils';
 import { getLocationHash } from './url_utility';
 import { convertToCamelCase, convertToSnakeCase } from './text_utility';
 import { isObject } from './type_utility';
-import breakpointInstance from '../../breakpoints';
 
 export const getPagePath = (index = 0) => {
   const page = $('body').attr('data-page') || '';

spec/javascripts/lib/utils/common_utils_spec.js

 import MockAdapter from 'axios-mock-adapter';
+import { GlBreakpointInstance as breakpointInstance } from '@gitlab/ui/dist/utils';
 import axios from '~/lib/utils/axios_utils';
 import * as commonUtils from '~/lib/utils/common_utils';
 import { faviconDataUrl, overlayDataUrl, faviconWithOverlayDataUrl } from './mock_data';
-import breakpointInstance from '~/breakpoints';
 
 const PIXEL_TOLERANCE = 0.2;